Grade 12.9 Black CSK Countersunk Head Self Tapping Drywall Screw Carbon Steel
Price:
0.007USD-0.255USD
MOQ:
10pcs
Delivery Time:
15days
Brand:
JIA SHAN
Product Description
Grade 12.9 Black CSK Countersunk Head Self Tapping Drywall Screw Carbon Steel
Product Specifications
| Attribute | Value |
|---|---|
| Name | Metal Screw |
| Standard | DIN, ASME, ANSI, ISO |
| Material | Steel, Stainless steel, Brass, Copper, Titanium Alloy, Plastic |
| Place of Origin | China |
| Finish | Polish, Passivation, Black, Galvanization, Chromate, Dacromet |
| Certificate | ISO9001:2008, ROHS |
| Used | Building Industry Machinery |
| Thread Type | Coarse, Fine |
| Usage | Fastening |
| Function | Connection, Fastening and Decoration |
| Strength | High |
| Size | Various sizes available |
| Measurement System | INCH, Metric system |
Product Description
Carbon Steel Grade 12.9 Black CSK Countersunk Head Self Tapping Drywall Screw
Key Features
- Phosphating dry-wall screws offer superior lubricity and faster penetration speed
- Available in black phosphating (better attack speed) or blue-white zinc (better rust resistance)
- Precision grade typically 6g (Class 2) for industrial applications
- Single-line coarse-thread design provides faster tapping speed and better wood preservation
- Ideal alternative to double-line fine-threaded screws for wooden keel connections
Applications
| Industry | Use Case |
|---|---|
| Automotive | High-strength applications in engines, heavy-duty machinery, and bridge construction |
| Mechanical | Connecting mechanical parts, circuit boards, engines, transmissions, and building structures |
| Energy | Connecting power generation equipment and transmission line fixtures |
| Construction | Building structures, shipbuilding, and petrochemical equipment connections |
Material Specifications
| Material | Characteristics |
|---|---|
| Aluminum | Excellent thermal/electrical conductivity but requires careful processing |
| Titanium | Requires EDM machining with deionized water medium |
| Steel | High strength but generates significant heat during processing |
| Brass | High tensile strength but requires slow cutting speed |
Product Images
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock, depending on quantity.
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but the customer pays for freight.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hunan Jia Shan Hardware Tech Co., Ltd.
Location
No.103,104,1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
Contact Person
Jame Tan